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1.
Beer served at the Pengrowth Saddledome in Calgary,Alberta,Canada. One beer will mess you right up and you will eventually experience the power of it once you get the worst headache you've ever had.

"I never really understood why they called it heroin beer.....before I knew it I was taking my shirt off and swing it over my head"
by FrankyG April 16, 2008
 
2.
Nickname for beer at the Pengrowth Saddledome in Calgary, AB. Common theories include dirty lines from the kegs in the basement re-fermenting on the way up, and CO2 pressured lines adding a special something to the beer.
I've never been so bloody hammered off 3 beers until I expericenced Heroin Beer.
by alltherage January 08, 2009